SERVICING INSTRUCTIONS
CAUTION: Before doing any work on the string trimmer, always switch off the engine and pull the plug cap off the spark plug (see “check- ing the spark plug”).
Always wear protective gloves!
To ensure a long service life and to avoid any damage to the equipment, the following servicing operations should be performed at regular intervals.
Daily checkup and maintenance
–Before operation, check the machine for loose screws or missing parts. Pay particular attention to the tightness of the nylon cutting head.
–Before operation, always check for clogging of the cooling air passage and the cylinder fins. Clean them if necessary.
–Perform the following work daily after use:
•Clean the string trimmer externally and inspect for damage.
•Clean the air filter. When working under extremely dusty conditions, clean the filter the several times a day.
•Check the nylon cutting head for damage and make sure it is firmly mounted.
•Check that there is sufficient difference between idling and engagement speed to ensure that the nylon cutting head is at a standstill while the engine is idling (if necessary, reduce idling speed).
If under idling conditions the tool should still continue to run, consult your nearest Authorized Service Agent.
–Check the functioning of the
Cleaning of air cleaner
Clogging of the element (1) may sometimes make it difficult or impossible to start up the engine or increase the engine speed.
After the end of operation, be sure to clean the air cleaner as mentioned below.
–Remove the air cleaner cover screw.
–Place the finger under the air cleaner cover, push down the cover lower part, and detach the air cleaner cover.
–Take out the element (1), clean it with lukewarm water mixed with neutral detergent, and dry it completely.
–After cleaning, attach the element.
–Insert the claw at the case upper part into the hole at the upper part of the air cleaner cover. Then, attach the air cleaner cover by pushing it, and tighten the screw (2).
NOTE:If there is excessive dust or dirt adhering to the air cleaner, clean it every day. A clogged air cleaner may make it difficult or impossible to start the engine or increase the engine rotational speed.
Checking the spark plug
–Only use the supplied universal wrench to remove or to install the spark plug.
–The gap between the two electrodes of the spark plug should be 0.6 - 0.7 mm (0.024" - 0.028"). If the gap is too wide or too narrow, adjust it. If the spark plug is clogged with carbon or fouled, clean it thoroughly or replace it.
CAUTION: Never touch the spark plug connector while the engine is running (danger of high voltage electric shock).
(1)
(2)
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